Abstract: The invention concerns a rail vehicle (1) comprising a first power supply unit (5) which has at least one, preferably at least two, fuel cells (7), at least one fuel storage (8) and a first fuel cell power converter (10). The first fuel cell power converter (10) comprises a DC/DC converter (12) for each fuel cell (7), the DC/DC converters (12) preferably have outputs which are connected in parallel. The first power supply unit (5) is preferably arranged in a powerpack (2).

Abstract: The invention relates to a method for carrying out an electronic transaction according to the following steps: Data exchange between a first network subscriber node (1) and a second network subscriber node (2) is carried out by a first terminal (1a) of the first network subscriber node (1) via a first communication network in order to determine transaction data of the transaction; an identification number of a second end device (1b) of the first network subscriber node (1) is inputted into a second communication network, which is different from the first, by means of a first network subscriber node (1) in the first terminal (1a) of the first network subscriber node (1); the identification number and the transaction data from first network subscriber nodes (1) are transmitted (S1, S2; S1?) to a third network subscriber node (3) by means of a third communication network; the validity of the identification number is verified (S3) by the third network subscriber nodes (3) and an associated service provider node (

Abstract: A computer-implemented method of identifying a mobile device for carrying out a transaction includes receiving from a mobile device a purchase request, providing to the mobile device a redirect message to direct the mobile device to a device number identification service, and obtaining an identifier for conducting commerce with the device and using the identifier to request a transaction authorization from a billing service associated with the device.

Abstract: The present invention relates to methods and apparatus for using a wireless telephone communication protocol to make a non-telephonic audio announcement (NTAA). An apparatus to use a hands-free telephonic device to make a non-telephonic audio announcement (NTAA) includes an announcer module configured to receive the NTAA from an application. The announcer module is configured to send an outgoing call initiation command signal to the hands-free telephonic device using a hands-free communication protocol. After the call initiation command signal is sent, the announcer sends the NTAA to the hands free telephonic device using the hands-free communication protocol.

Abstract: The present invention relates to methods and apparatus for using a wireless telephone communication protocol to make a non-telephonic audio announcement (NTAA). An apparatus to use a hands-free telephonic device to make a non-telephonic audio announcement (NTAA) includes an announcer module configured to receive the NTAA from an application. The announcer module is configured to send an outgoing call initiation command signal to the hands-free telephonic device using a hands-free communication protocol. After the call initiation command signal is sent, the announcer sends the NTAA to the hands free telephonic device using the hands-free communication protocol.